
1	Computer-Assisted Spine Surgery (CASS) Sung Shik Kang, Dong-Bong Lee, Ho-Joong Kim, Jin S. Yeom J Korean Orthop Assoc.2013;48(6):413-418. Published online 2013 December 26 DOI: http://dx.doi.org/10.4055/jkoa.2013.48.6.413